<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	//private $_id;
	private $_user;
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
   
	public function authenticate()
	{
		$user=User::model()->findByAttributes(array('username'=>$this->username));
		
		if($user===null)
            $this->errorCode=self::ERROR_USERNAME_INVALID;
        else 
        {        	
        	$correctpass = Encrypt::decript($this->password, $user->salt, $user->password);
        	if(!$correctpass)
	            $this->errorCode=self::ERROR_PASSWORD_INVALID;
	        else
	        {
	            //$this->_id=$user->id;
	            $this->_user = $user;                        
	            $this->errorCode=self::ERROR_NONE;
	        }
        }
        return !$this->errorCode;       	
	}
	
	public function getId()
    {
        return $this->_user;
    }    
}